US6492391B1 - Crystal modification d of 8-cyano-1-cyclopropyl-7-(1s, 6s- 2,8-diazabicyclo-[4.3.0]nonan-8-yl)-6-fluoro-1,4- dihydro-4-oxo-3-quinolinecarboxylic acid - Google Patents
Crystal modification d of 8-cyano-1-cyclopropyl-7-(1s, 6s- 2,8-diazabicyclo-[4.3.0]nonan-8-yl)-6-fluoro-1,4- dihydro-4-oxo-3-quinolinecarboxylic acid Download PDFInfo
- Publication number
- US6492391B1 US6492391B1 US09/914,031 US91403101A US6492391B1 US 6492391 B1 US6492391 B1 US 6492391B1 US 91403101 A US91403101 A US 91403101A US 6492391 B1 US6492391 B1 US 6492391B1
- Authority
- US
- United States
- Prior art keywords
- ccdc
- modification
- diazabicyclo
- cyclopropyl
- dihydro
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- LZLXHGFNOWILIY-APPDUMDISA-N [H]N1CCC[C@@]2([H])CN(C3=C(F)C=C4C(=O)C(C(=O)O)=CN(C5CC5)C4=C3C#N)C[C@@]12[H] Chemical compound [H]N1CCC[C@@]2([H])CN(C3=C(F)C=C4C(=O)C(C(=O)O)=CN(C5CC5)C4=C3C#N)C[C@@]12[H] LZLXHGFNOWILIY-APPDUMDISA-N 0.000 description 3
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
- C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
- C07D471/04—Ortho-condensed systems
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/04—Antibacterial agents
Definitions
- the present invention relates to a defined crystal modification of 8-cyano-1-cyclopropyl-7-(1S,6S-2,8-diazabicyclo[4.3.0]nonan-8-yl)-6-fluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid, to processes for its preparation and to its use in pharmaceutical preparations.
- CCDC 8-cyano-1-cyclopropyl-7-(1S,6S-2,8-diazabicyclo[4.3.0]nonan-8-yl)-6-fluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid of the formula (I) is referred to as CCDC.
- CCDC is known from DE-A 19 633 805 or PCT Appl. No. 97 903 260.4. According to these publications, it is prepared by reacting 7-chloro-8-cyano-1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid with (1S,6S)-2,8-diazabicyclo[4.3.0]nonane in a mixture of dimethylformamide and acetonitrile in the presence of an auxiliary base. Water is added to the mixture and CCDC is then extracted from water using dichloromethane and is isolated by removing the extractant. This gives a powder whose crystal modification is not unambiguous.
- the powder is largely amorphous and can contain mixtures of different crystal modifications. If, by chance, a uniform crystal modification is formed, it is not clear how it can be extracted and obtained in a defined form. However, it is the precondition for preparing medicaments that, for an active compound which can be present in different crystal modifications, it can be stated unamibiguously which of its crystal modifications is used for preparing the medicament.
- the partially amorphous powder which is obtained by the preparation process outlined above is furthermore hygroscopic.
- amorphous solids, and in particular hygroscopic solids are difficult to handle when being processed pharmaceutically since, for example, they have low bulk densities and unsatisfactory flow properties.
- the handling of hygroscopic solids requires special work techniques and apparatuses to obtain reproducible results, for example with respect to the active compound content or the stability of the solid formulations produced.
- the invention accordingly provides the crystalline modification D of CCDC which is characterized in that it has an X-ray powder diffractogram with the reflection signals (2 theta) of high and medium intensity (>30% relative intensity) listed in Table 1 below.
- FIG. 1 A characteristic X-ray powder diffractogram of the modification D of CCDC is shown in FIG. 1 .
- a characteristic differential thermodiagram CCDC of the modification D is shown in FIG. 2 .
- a characteristic differential thermodiagram of a predominantly amorphous CCDC as reported at page 5, line 25-26 is shown in FIG. 7 .
- the CCDC modification D according to the invention differs from other forms of CCDC in a number of further properties. These properties, on their own or together with the other parameters, may also serve for characterizing the CCDC modification D according to the invention.
- CCDC of the modification D is characterized by a melting point, determined with the aid of differential thermoanalysis (DTA), of from 261° C. to 265° C.
- DTA differential thermoanalysis
- CCDC of the modification D is characterized in that it has an infrared spectrum, measured in KBr, as shown in FIG. 3 .
- Crystal modification D of CCDC is obtained by dissolving CCDC of an unknown modification or amorphous CCDC at a concentration between 1 and 3 per cent by weight in water, allowing the solution to stand until a solid precipitates out, filtering off this solid, drying the resulting water-containing product, followed by heating to a temperature above the rearrangement temperature.
- the water-containing product can be dried by customary methods.
- the water-containing product can be dried, for example, at elevated temperature under reduced pressure. It is also possible to carry out the drying in the presence of a customary drying agent, such as, for example, phosphorus pentoxide.
- the temperature required for rearranging the dried sample into modification D can be determined by DTA of the dried substance. It is generally between 130° C. and 160° C.
- CCDC of the crystal modification D is surprisingly stable and does not change into another crystal modification or the amorphous form, even on prolonged storage. For these reasons, it is highly suitable for preparing tablets or other solid formulations. Owing to its stability, it gives these formulations the desired long-lasting storage stability. Using the crystal modification D, it is therefore possible to prepare, in a defined and targeted manner, stable solid preparations of CCDC.
- CCDC of the crystal modification D is highly active against pathogenic bacteria in the area of human or veterinary medicine. Its broad area of use corresponds to that of CCDC.
- the X-ray powder diffractogram for characterizing the crystal modification D of CCDC was obtained using a transmission diffractometer STADI-P with a location-sensitive detector (PSD2) from Stoe.
- the melting point of the differential thermoanalysis was obtained using the DSC 820 unit from Mettler-Toledo.
- the sample of CCDC of the crystal modification D was heated exposed to the atmosphere in an aluminium crucible at 5 K/min.
- the KBr IR spectrum was obtained using the 881 unit from Perkin-Elmer.
- the examples below illustrate the invention without limiting it.
- the solvent/base systems used in the examples below are particularly preferred.
- the resulting solution is adjusted to pH 7 using dilute hydrochloric acid, and the solid is filtered off.
- the filtrate is extracted three times using 20 ml of dichloromethane each time.
- the organic phase is dried over sodium sulphate and filtered and the filtrate is concentrated at a bath temperature of 60° C. using a rotary evaporator. This gives 2.4 g of a light-brown solid which has the X-ray powder diffractogram shown in FIG. 4 and is therefore predominantly amorphous.
- the resulting solid is suspended in a mixture of 4650 ml of ethanol and 41 g of Hünig base, and the reaction mixture is heated under reflux for 3 hours.
- the reaction mixture is allowed to cool again to room temperature, and the solid is filtered off with suction, washed with a total of 1000 ml of EtOH and dried at from 60 to 70° C. in a vacuum drying cabinet until the weight remains constant. This gives 1130 g of a beige solid which has the X-ray powder diffractogram shown in FIG. 5 .
Abstract
Description
TABLE 1 |
X-ray powder diffractogram of CCDC of the |
2 θ (2 theta) |
7.6 |
9.5 |
12.8 |
14.2 |
17.5 |
19 |
19.3 |
19.5 |
20.4 |
21 |
21.8 |
22.6 |
25.2 |
27.5 |
Claims (10)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19908448A DE19908448A1 (en) | 1999-02-26 | 1999-02-26 | Crystal modification D of 8-cyan-1-cyclopropyl-7- (1S, 6S-2,8-diazabicylo [4.3.0) nonan-8-yl) -6-fluoro-1,4-dihydro-4-oxo-3 -chino incarboxylic acid |
DE19908448 | 1999-02-26 | ||
PCT/EP2000/001203 WO2000052010A1 (en) | 1999-02-26 | 2000-02-14 | Crystal modification d of 8-cyano-1-cyclopropyl-7- (1s, 6s- 2,8- diazabicyclo- [4.3.0] nonan-8-yl) -6-fluoro -1,4-dihydro -4-oxo -3-quinoline carboxylic acid |
Publications (1)
Publication Number | Publication Date |
---|---|
US6492391B1 true US6492391B1 (en) | 2002-12-10 |
Family
ID=7899026
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/914,031 Expired - Fee Related US6492391B1 (en) | 1999-02-26 | 2000-02-14 | Crystal modification d of 8-cyano-1-cyclopropyl-7-(1s, 6s- 2,8-diazabicyclo-[4.3.0]nonan-8-yl)-6-fluoro-1,4- dihydro-4-oxo-3-quinolinecarboxylic acid |
Country Status (22)
Country | Link |
---|---|
US (1) | US6492391B1 (en) |
EP (1) | EP1159277A1 (en) |
JP (1) | JP2002538159A (en) |
KR (1) | KR100756474B1 (en) |
CN (1) | CN1217944C (en) |
AU (1) | AU760710B2 (en) |
BR (1) | BR0008520A (en) |
CA (1) | CA2362804A1 (en) |
CZ (1) | CZ20013065A3 (en) |
DE (1) | DE19908448A1 (en) |
HK (1) | HK1045158B (en) |
HU (1) | HUP0200053A3 (en) |
IL (1) | IL144528A0 (en) |
NO (1) | NO320314B1 (en) |
NZ (1) | NZ513749A (en) |
PL (1) | PL349394A1 (en) |
RU (1) | RU2248357C2 (en) |
SK (1) | SK11942001A3 (en) |
TR (1) | TR200102435T2 (en) |
UA (1) | UA71606C2 (en) |
WO (1) | WO2000052010A1 (en) |
ZA (1) | ZA200106050B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7977484B2 (en) | 2004-04-01 | 2011-07-12 | Bayer Animal Health Gmbh | Crystalline form of cyano-1-cyclopropy1-7-1S,6S-2,8-diazabicyclo[4.3.0]nonan-8-yl)-6-fluoro-1,4-dihydro-4-oxo-3-quinoline carboxylic acid |
US10780168B2 (en) | 2017-02-13 | 2020-09-22 | Bayer Animal Health Gmbh | Liquid composition containing pradofloxacin |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19854356A1 (en) | 1998-11-25 | 2000-05-31 | Bayer Ag | Crystal modification A of 8-cyan-1-cyclopropyl-7- (1S, 6S-2,8-diazabicyclo- / 4.3.0 / nonan-8-yl) -6-fluoro-1,4-dihydro-4-oxo 3-quinoline carboxylic acid |
DE19854355A1 (en) | 1998-11-25 | 2000-05-31 | Bayer Ag | Crystal modification B of 8-cyan-1-cyclopropyl-7- (1S, 6S-2,8-diazabicyclo- / 4.3.O / nonan-8-yl) -6-fluoro-1,4-dihydro-4-oxo 3-quinoline carboxylic acid |
DE19908449A1 (en) | 1999-02-26 | 2000-08-31 | Bayer Ag | Crystal modification C of 8-cyan-1-cyclopropyl-7- (1S, 6S-2,8-diazabicylo- [4.3.0] nonan-8-yl) -6-fluoro-1,4-dihydro-4-oxo 3-chino / incarboxylic acid |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01242582A (en) | 1988-03-22 | 1989-09-27 | Hokuriku Seiyaku Co Ltd | Production of type i crystal of quinolone-carboxylic acid compound |
WO1996016055A1 (en) | 1994-11-18 | 1996-05-30 | Pharmacia & Upjohn Company | A new physically stable solid form of a fluoroquinolone |
WO1997031001A1 (en) * | 1996-02-23 | 1997-08-28 | Bayer Aktiengesellschaft | Possibly substituted 8-cyano-1-cyclopropyl-7-(2,8-diazabicyclo-[4.3.0]-nonan-8-yl)-6-fluoro-1,4-dihydro-4-oxo-3-quinolin carboxylic acids and their derivatives |
WO2000031075A1 (en) | 1998-11-25 | 2000-06-02 | Bayer Aktiengesellschaft | Crystal modification a of 8-cyano-1- cyclopropyl -7-(1s,6s-2, 8-diazabicyclo [4.3.0]nonan -8-yl)-6- fluoro-1, 4-dihydro- 4-oxo-3- quinoline carboxylic acid |
WO2000031076A1 (en) | 1998-11-25 | 2000-06-02 | Bayer Aktiengesellschaft | Crystal modification b of 8-cyano-1- cyclopropyl -7-(1s,6s-2, 8-diazabicyclo [4.3.0]nonan -8-yl)-6- fluoro-1,4- dihydro-4- oxo-3-quinoline carboxylic acid |
WO2000052009A1 (en) | 1999-02-26 | 2000-09-08 | Bayer Aktiengesellschaft | Crystal modification c of 8-cyano-1-cyclopropyl-7- (1s, 6s-2,8- diazabicyclo -[4.3.0] nonan-8-yl) -6-fluoro-1,4-dihydro-4-oxo-3-quinoline carboxylic |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001242582A (en) * | 2000-02-25 | 2001-09-07 | Fuji Photo Film Co Ltd | Silver halide photographic sensitive material and method for processing the same |
-
1999
- 1999-02-26 DE DE19908448A patent/DE19908448A1/en not_active Withdrawn
-
2000
- 2000-02-14 NZ NZ513749A patent/NZ513749A/en unknown
- 2000-02-14 CN CN00804306XA patent/CN1217944C/en not_active Expired - Fee Related
- 2000-02-14 AU AU31544/00A patent/AU760710B2/en not_active Ceased
- 2000-02-14 WO PCT/EP2000/001203 patent/WO2000052010A1/en not_active Application Discontinuation
- 2000-02-14 RU RU2001126301/04A patent/RU2248357C2/en not_active IP Right Cessation
- 2000-02-14 IL IL14452800A patent/IL144528A0/en not_active IP Right Cessation
- 2000-02-14 UA UA2001096577A patent/UA71606C2/en unknown
- 2000-02-14 PL PL00349394A patent/PL349394A1/en not_active Application Discontinuation
- 2000-02-14 HU HU0200053A patent/HUP0200053A3/en unknown
- 2000-02-14 CZ CZ20013065A patent/CZ20013065A3/en unknown
- 2000-02-14 US US09/914,031 patent/US6492391B1/en not_active Expired - Fee Related
- 2000-02-14 TR TR2001/02435T patent/TR200102435T2/en unknown
- 2000-02-14 SK SK1194-2001A patent/SK11942001A3/en not_active Application Discontinuation
- 2000-02-14 EP EP00909167A patent/EP1159277A1/en not_active Withdrawn
- 2000-02-14 JP JP2000602236A patent/JP2002538159A/en not_active Withdrawn
- 2000-02-14 CA CA002362804A patent/CA2362804A1/en not_active Abandoned
- 2000-02-14 BR BR0008520-0A patent/BR0008520A/en not_active IP Right Cessation
- 2000-02-14 KR KR1020017009632A patent/KR100756474B1/en not_active IP Right Cessation
-
2001
- 2001-07-24 ZA ZA200106050A patent/ZA200106050B/en unknown
- 2001-08-21 NO NO20014059A patent/NO320314B1/en unknown
-
2002
- 2002-09-12 HK HK02106690.8A patent/HK1045158B/en not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01242582A (en) | 1988-03-22 | 1989-09-27 | Hokuriku Seiyaku Co Ltd | Production of type i crystal of quinolone-carboxylic acid compound |
WO1996016055A1 (en) | 1994-11-18 | 1996-05-30 | Pharmacia & Upjohn Company | A new physically stable solid form of a fluoroquinolone |
WO1997031001A1 (en) * | 1996-02-23 | 1997-08-28 | Bayer Aktiengesellschaft | Possibly substituted 8-cyano-1-cyclopropyl-7-(2,8-diazabicyclo-[4.3.0]-nonan-8-yl)-6-fluoro-1,4-dihydro-4-oxo-3-quinolin carboxylic acids and their derivatives |
WO2000031075A1 (en) | 1998-11-25 | 2000-06-02 | Bayer Aktiengesellschaft | Crystal modification a of 8-cyano-1- cyclopropyl -7-(1s,6s-2, 8-diazabicyclo [4.3.0]nonan -8-yl)-6- fluoro-1, 4-dihydro- 4-oxo-3- quinoline carboxylic acid |
WO2000031076A1 (en) | 1998-11-25 | 2000-06-02 | Bayer Aktiengesellschaft | Crystal modification b of 8-cyano-1- cyclopropyl -7-(1s,6s-2, 8-diazabicyclo [4.3.0]nonan -8-yl)-6- fluoro-1,4- dihydro-4- oxo-3-quinoline carboxylic acid |
WO2000052009A1 (en) | 1999-02-26 | 2000-09-08 | Bayer Aktiengesellschaft | Crystal modification c of 8-cyano-1-cyclopropyl-7- (1s, 6s-2,8- diazabicyclo -[4.3.0] nonan-8-yl) -6-fluoro-1,4-dihydro-4-oxo-3-quinoline carboxylic |
Non-Patent Citations (1)
Title |
---|
Database WPI, Section Ch, Week 298945, Derwent Publications Ltd., London, GB; Class B02, AN 1989-327670, XP002139340 & JP 01 242582 A (Hokuriku Pharm Co Ltd.), Sep. 27, 1989. |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7977484B2 (en) | 2004-04-01 | 2011-07-12 | Bayer Animal Health Gmbh | Crystalline form of cyano-1-cyclopropy1-7-1S,6S-2,8-diazabicyclo[4.3.0]nonan-8-yl)-6-fluoro-1,4-dihydro-4-oxo-3-quinoline carboxylic acid |
US10780168B2 (en) | 2017-02-13 | 2020-09-22 | Bayer Animal Health Gmbh | Liquid composition containing pradofloxacin |
US11617792B2 (en) | 2017-02-13 | 2023-04-04 | Bayer Animal Health Gmbh | Liquid composition containing pradofloxacin |
Also Published As
Publication number | Publication date |
---|---|
NZ513749A (en) | 2003-10-31 |
ZA200106050B (en) | 2002-07-24 |
HUP0200053A2 (en) | 2002-05-29 |
NO20014059D0 (en) | 2001-08-21 |
CN1341116A (en) | 2002-03-20 |
KR100756474B1 (en) | 2007-09-07 |
JP2002538159A (en) | 2002-11-12 |
TR200102435T2 (en) | 2002-01-21 |
CZ20013065A3 (en) | 2002-01-16 |
BR0008520A (en) | 2001-12-18 |
NO20014059L (en) | 2001-08-21 |
HK1045158A1 (en) | 2002-11-15 |
SK11942001A3 (en) | 2001-12-03 |
CN1217944C (en) | 2005-09-07 |
DE19908448A1 (en) | 2000-08-31 |
HUP0200053A3 (en) | 2003-01-28 |
RU2248357C2 (en) | 2005-03-20 |
KR20010093300A (en) | 2001-10-27 |
IL144528A0 (en) | 2002-05-23 |
CA2362804A1 (en) | 2000-09-08 |
PL349394A1 (en) | 2002-07-15 |
NO320314B1 (en) | 2005-11-21 |
HK1045158B (en) | 2006-04-21 |
WO2000052010A1 (en) | 2000-09-08 |
UA71606C2 (en) | 2004-12-15 |
EP1159277A1 (en) | 2001-12-05 |
AU3154400A (en) | 2000-09-21 |
AU760710B2 (en) | 2003-05-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6492391B1 (en) | Crystal modification d of 8-cyano-1-cyclopropyl-7-(1s, 6s- 2,8-diazabicyclo-[4.3.0]nonan-8-yl)-6-fluoro-1,4- dihydro-4-oxo-3-quinolinecarboxylic acid | |
US6664268B1 (en) | Crystal modification B of 8-cyano-1-cyclopropyl-7-(1S,6S-2, 8-diazabicyclo[4.3.0]nonan-8-yl)-6-fluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid | |
US6649762B1 (en) | Crystal modification C of 8-cyano-1-cyclopropyl-7-(1S,6S-2,8-diazabicyclo-[4.3.0]nonan-8-yl)-6-fluoro-1,4-dihyro-4-oxo-3-quinoline carboxylic | |
US6436955B1 (en) | Crystal modification A of 8-cyano-1-cyclopropyl-7-(is,6s-2,8-diazabicyclo[4.3.0]nonan-8-yl)-6-fluoro-1,4-dihydro-4-oxo-3-quinolinecarboxylic acid | |
MXPA01008650A (en) | Crystal modification d of 8-cyano-1-cyclopropyl-7- (1s, 6s- 2,8- diazabicyclo- [4.3.0]nonan-8-yl) -6-fluoro -1,4-dihydro -4-oxo -3-quinoline carboxylic acid | |
MXPA01008651A (en) | Crystal modification c of 8-cyano-1-cyclopropyl-7- (1s, 6s-2,8- diazabicyclo -[4.3.0]nonan-8-yl) -6-fluoro-1,4-dihydro-4-oxo-3-quinoline carboxylic | |
MXPA01005230A (en) | Crystal modification a of 8-cyano-1- cyclopropyl -7-(1s,6s-2, 8-diazabicyclo [4.3.0]nonan -8-yl)-6- fluoro-1, 4-dihydro- 4-oxo-3- quinoline carboxylic acid |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: BAYER AKTIENGESELLSCHAFT, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HIMMLER, THOMAS;RAST, HUBERT;REEL/FRAME:012218/0806;SIGNING DATES FROM 20010627 TO 20010702 |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
AS | Assignment |
Owner name: BAYER ANIMAL HEALTH GMBH, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BAYER AKTIENGESELLSCHAFT;REEL/FRAME:022203/0937 Effective date: 20081204 |
|
REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20101210 |